Hydrocarbon conversion catalytic composite

Abstract

A catalytic composite, comprising a combination of a nickel component and a tungsten component with a silica-alumina carrier material wherein said carrier material is co-gelled silica-alumina consisting of from about 43 percent to about 57 percent by weight of alumina and from about 57 percent to 43 percent by weight silica and wherein said components are present in amounts sufficient to result in the composite containing, on an elemental basis, about 2 to about 10 percent by weight of the nickel component and about 8 to about 20 percent by weight of the tungsten component, is disclosed. Key features of the subject composite are the criticality of the alumina content of the carrier material and the facility of using a co-gelled silica-alumina carrier material. The principal utility of the subject composite is in the hydrocracking of hydrocarbons. A specific example of the catalyst disclosed is a combination of nickel and tungsten with a co-gelled silica-alumina carrier material containing 50 weight percent alumina in amounts sufficient to result in the composite containing, on an elemental basis, about 7 to about 9 weight percent nickel and about 17 to about 19 weight percent tungsten.

1. A catalytic composite comprising a combination of a nickel component, and a tungsten component with a silica-alumina carrier material wherein said carrier material is co-gelled silica-alumina consisting of from about 43 percent to about 57 percent by weight alumina and from about 57 to 43 percent by weight silica and wherein said components are present in amounts sufficient to result in the composite containing, on an elemental basis, about 2 to about 10 percent by weight of the nickel component and 
     
     
       2. A catalytic composite as defined in claim 1 wherein said carrier material consists of 50 percent by weight of alumina and wherein said composite contains, on an elemental basis, about 7 to about 9 percent by weight of nickel and about 17 to about 19 percent by weight of tungsten. 
     
     
       3. A catalytic composite comprising a combination of the catalytic composite of claim 1 with a sulfur component in amounts sufficient to incorporate about 0.05 to about 1 weight percent sulfur, calculated on an elemental basis.